重载复数.doc

铁道出版社出版的C++的习题源代码

#include<iostream.h>
class Complex
{
public:
	Complex (){real=0;image=0;}
	Complex(double r,double i){real=r;image=i;}
	Complex operator +(Complex &c2);
	friend ostream &operator<<(ostream &,Complex &);
private:
	double real;
	double image;
};
Complex Complex::operator+(Complex &c2)
{
	return Complex(real+c2.real,image+c2.image);
}
ostream &operator<<(ostream &output,Complex &c)
{
	output<<"("<<c.real<<","<<c.image<<"i)";
	return output;
}
int main()
{
	Complex c1(2,4),c2(6,10),c3;
	c3=c1+c2;
	cout<<","<<c2<<"="<<c3;
	return 0;
}